Air purifier



FIG. 1 is a front and top perspective view of an air purifier, showingmy new design;

FIG. 2 is a rear and bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is an enlarged view of the portion indicated in FIG. 1.

The dashed broken lines in the figures illustrate portions of the airpurifier that form no part of the claimed design. The dash dot dashlines showing the enlargements in FIGS. 1 and 9 form no part of theclaimed design.

CLAIM The ornamental design for an air purifier, as shown and described.